Trailer hitch flagpole mount



FIG. 1 is a perspective view of a design for a trailer hitch flagpole mount;

FIG. 2 is a left side view of my design;

FIG. 3 is a right view of my design;

FIG. 4 is a front side view of my design;

FIG. 5 is a back side view of my design;

FIG. 6 is a top view of my design; and,

FIG. 7 is a bottom view of my design.

The broken lines depict environmental structures and portions of the trailer hitch flagpole mount that from no part of the claimed design. 

The ornamental design for a trailer hitch flagpole mount, as shown and described. 